Art of pasteurizing liquids.



L. J. CRECELIUS.

ART OF PASTEURIZING LIQUIDS.

APPLICATION FILED MAR- 3,1915.

Patented Jan. 18, 1916.

3 SHEETSSHEET l- L. J. CRECELIUS.

ART OF PASTEURIZING LIQUIDS.

APPLICATION FILED MAR- 3. 1915.

Patented Jan. 18, 1916.

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W ya L. J. CRECELIUS.

ART OF PASTEURIZING LIQUIDS.

APPLICATION FILED MAR-3,1915.

Patented Jan. 18, 1916.

3 SHEETS-SHEET 3.

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rm: COLUMBIA PMNOCIRAPH co., WASHINGTON, D. c

Wear IATESPM mm I Louis J. onnonnin's, or s'r. LOUIS, iviissoUn AssIe on, IBY fni nno'r AND MESNE ASSIGNMENTS, or oNn-roun'rncro JOHN H.SASSEEN, ONE-FOURTH TO ALEXANDER 'n. ronians, AND ONE-FOURTH TonnwAnD G. BORNEMANN, JOHN W. OIBRIEN, AND enoaon r. KERWIN, an. or sit. LOUIS, iaissouni.

ART or PASTEURIZING LIQUIDS.

To all whom it may concern:

I Be it known that I, LOUIS J. Gnnonnins, a I

citizen of the United States of America, a resident ofthe cityof StLouis, tate of Missouri, have invented certain new and useful Improvements in the Art of Pasteurizing Liquids, of which the following is. a full, clear, and exact (:lescription, referencebeing had to theaccompanying drawings, forming a part of this specification.

My invention relates to improvements in the art of pasteurizing liquids and more specificallystated to a method of pasteurizing substances contained in bottles or other containers. 1

One of the objects of the invention is to provide a simple and very eflicient method of pasteurizing bottled milk.

Another object is to provide an improved .method I which comprises, placing bottled substance in a pasteurizing tanlrcontaining a liquid (preferably water) so that the lower portions of the bottles are submerged in the liquid, closingthe tank to prevent the escape of vapor, heating the liquid sothatthe lower portionsof the partially submerged bottles are heated by the liquid,

while the upper portions of the bottles are subjected to the heat of the vapor which rises from the. hot liquid. Since the upper ends of the bottles are not submerged, that liquid utilized in heating the bottles cannot leak through or around the bottle closures.

Another object is to provide a simple method which comprises, primarily heating theilower portions of the bottles containing the substance to be pasteurized;thereby causing said substance to circulate in the bottles at the beginning of the pasteurizing operation, and thereafter maintaining the izing tank, thereby primarily cooling the lower ends of the bottlesand gradually cooling the upper portions ofthe bottles as the i transverse sectionof the pasteurizer.

.III 1s a detall viewillustrating a fragment .ofthetank and a portlonof the sectional Specification of Letters Patent. Patentefl Jan, 18, 1916 Application filed March a, 1915. Serial No. 11,683.

water rises in thetank. By cooling bottled milk in this manner, the creamisseparated from themilk and the cream gradually rises to the surface, a large body of cream being plainly visible at the upper portion of each bottle.

i The inventionalso includes certain desirmy method, a portion of the tank cover and i i able new features, which will be hereinafter 1 a portion of the grates, which support the bottles, being broken away. Fig. .II'is a discharge pipe through which, hot and cold fluid is conducted to thetank. Fig. IV is a top or plan viewof one of the grate sections which support the bottled substance. Fig. V is an enlarged longitudinal section of the of the grate beingbroken away. Fig. V1 is any enlarged top or plan view of one of the discharge-pipes- Fig. VII is a transverse section of one of the discharge pipes.

Fig.

grate shown in Fig. IV, the middle portion A designates a frame'including angle bars 1, and B designates a tank resting on said angle bars and supported by the frame A.

. A; closure 2 is connectedto the tank by means of hinges 3.

4c designateslatch arms pivotally support,

ed at 5 and adapted to cooperatewithfingers 6 carried by the closure 2, as shown most clearly in Fig. H. Packing 7 is preferably interposed betweenangle bars 8, se-

cured to. the upper margins of the tank,

and angle bars 9 secured to the lower mar- -l gins of the closure. The bottles containing the substance to be pasteurized, rest upon 3 grate sections C which. are separated from the bottom of'the tank'B. The ends of the grate sections C preferably restupon angle bars 10 secured to the side walls of thetank prises a flat marginal bar 11 bent to form a Y rectangular frame, and a series oftransverse and longitudinal grate bars secured to saidframe. I I 1 c 13. designates aimanifold located adjacent to. one side of the tank, and 15 designates branch pipes leading, from said manifold.

which surrounds the upper portions of the containers, and closing said tank to confine the hot vapor.

2. The method of pasteurizing which comprises placing the substance to be pasteurized in containers, placing said containers in a tank and introducing liquid into said tank so that the lower portions of the containers are submerged in said liquid, heating said liquid to produce a hot Vapor which surrounds the upper portions of the containers, and closing said tank to confine the hot vapor, and thereafter cooling the pasteurized substance by introducing a cooler liquid into said tank to almost completely submerge the containers, the upper ends of the containers being exposed above the surface of said liquid.

3. The method which comprises heating bottled milk for the purpose described, and thereafter gradually cooling it by first cooling the lower portions of the bottles and then gradually cooling the upper portions of the bottles.

L. The method which comprises heating bottled milk for the purpose described, and thereafter cooling it by subjecting the hot bottles to the action of a cooler fluid which primarily surrounds the lower portions of the bottles and then gradually rises to a plane near the upper ends of the bottles.

5. The method which comprises heating bottled milk in a pasteurizing tank, and thereafter cooling the milk by gradually introducing a comparatively cool liquid into said tank so that said liquid will primarily surround the lower portions of the bottles and then gradually rise to a level near the upper ends of said bottles.

Copies of this patent may be obtained for five cents each, by addressing the 6. The method of pasteurizing which comprises placing the substance to be pasteurized in containers, placing said containers in a tank and introducing liquid into said tank to submerge the lower portions of the containers in said liquid, heating the liquid to gradually heat the containers, and thereafter gradually cooling the containers by gradually introducing a cooler liquid into the tank so that the cool liquid will primarily surround the lower portions of the partially submerged containers and then gradually rise to a level near the upper ends of said containers.

7 The method of pasteurizing which comprises, placing the substance to be pasteurized in containers, heating the lower portions of the containers to cause the substance to circulate therein, and thereafter stopping the circulation by subjecting the entire surfaces of the containers to the action of a heating medium which is substantially uniform in temperature at all points throughout the outer surface of the containers.

8. The method of pasteurizing which comprises placing bottled milk in a tank, heating a liquid in the lower portion of said tank to primarily heat the lower portions of the bottles, thereby causing the milk to circulate in the bottles, and causing the upper portions of the bottles to be subjected to the,

heat of the vapor which rises from the liquid in said tank.

L. J. CRECELIUS.

In the presence of- E. K. CLARK, A. J. MGCAULEY.

Commissioner of Patents,

Washington, D. G. 

